I guess we'd have to know what you mean by “whether that is a good field to go into”. Obviously all of us are in it. 🙂 I enjoy being in it, for whatever that is worth. You'll enter at the bottom, as your experience in IT won't really count for anything in accounting. However, that's true with switching from audit to tax or vice-versa, too, so it's not that accounting thinks it's superior to all, just that audit vs tax vs IT are different fields and experience in one won't help much in the other. You seem pretty reasonable, though, so sounds like you understand that. 🙂
If you have some specific questions or concerns about making the switch, we could probably help address those, but I'm not good at answering a blanket question of “is it a good field”.
Biggest drawback to accounting (in my experience) is that accounting generally has long hours, but some jobs don't or not as bad, and most accounting jobs the longest hours are confined to a certain time on the calendar (either in private accounting to a portion of the month/quarter, or in public to a couple portions of the year).
Best benefit of accounting is that it does have a pretty solid job market. A lot more small companies have accountants than a dedicated IT staff, for example. Is there a thread of automation? To an extent, but not fully. The traditional stereotypical accounting work is becoming more and more automated – the taking an individual receipt, making an individual entry, individual filing it away and tracking it through record retention for years, etc. However, the higher level thinking required for accounting will take a long time to be replaced if it ever is. I like the fact that the mundane part of the job isn't going to be as needed, but the more analytical side is just going to be more and more necessary as people want more complex predictions and analysis. Personally, I like the problem-solving more than the record-keeping, so if I can (for example) export a listing of all our credit card transactions after the cardholders have assigned account numbers to them, and just briefly review for accuracy then import into the accounting system, that sounds a whole lot better to me than going through a huge stack of receipts, coding for accounts, and then typing one-by-one into the accounting system. That's the type of changes that are being made. They're awesome, they are affecting the accounting clerk level jobs and will continue to do so, but I don't see the higher-level accounting jobs going anywhere anytime soon.
For your MBA, I would look around and see if you could get a Bachelor's in Accounting with the Accounting courses you've taken already (one option would be to see if between the courses you've taken in accounting and the classes you've taken elsewhere you could transfer everything to Thomas Edison State University [formerly College – name changed a week or so ago] and get a degree there: https://www.tesu.edu/business/bsba/Accounting.cfm . I got my degree though TESC/TESU and only took 1 course actually through TESC, so could be an easy way to formalize your credits into a degree). If so, then you'd already have Accounting in your education on your resume, and a general MBA would be fine. If you wouldn't have an easy way to do that (it's definitely not worth taking lots of extra classes!), then getting the MBA in Finance would just show that while you were doing your MBA, you were preparing for the move to an accounting/finance career and weren't still thinking IT-focused. Is the Finance track necessary? Probably not, but I think it would help, and definitely wouldn't hurt.
Also, just a thought to throw out there – have you considered a Finance career? I think your IT skills would be more likely to be a boost to your resume in Finance than Accounting. Not for a hybrid career, but for a pure Finance job, since they do a lot more with financial modeling and such, it seems like Finance jobs often have preferred qualifications that include IT abilities. If you haven't looked into Finance much, then it'd be worth considering at least. However, Accounting is good too. 🙂 I didn't really understand what Finance was when I was in school, so did Accounting cause I thought it was about the same and the degree was easier. Now, I think I'd enjoy the Finance work more, but it's a bit more specialized so the jobs aren't as abundant in rural areas, so since I live in the middle of nowhere, I'm glad that I went into Accounting instead. Even people in the backhills have to file taxes. 😉